package com.sky.service.impl;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.sky.annotation.AutoFill;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.enumeration.OperationType;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import io.swagger.models.auth.In;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        LambdaQueryWrapper<Employee> lam=new LambdaQueryWrapper<>();
        lam.eq(Employee::getUsername,username);
        Employee employee = employeeMapper.selectOne(lam);
        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password=DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工
     * @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        //创建对象用于转换
        Employee employee = new Employee();
        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);
        //设置密码，默认为123456
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //设置当前记录的创建时间和修改时间
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        //设置账号状态，1为启用，0为禁止
        employee.setStatus(StatusConstant.ENABLE);

        //TODO 需要改为当前登录的用户的id
        //设置当前记录创建人的ID和修改人的ID
        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.insert(employee);

    }

    @Override
    public PageResult pageSelect(EmployeePageQueryDTO employeePageQueryDTO) {
        IPage iPage=new Page(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        LambdaQueryWrapper<Employee> lam=new LambdaQueryWrapper<>();
        if(employeePageQueryDTO.getName()!=null&&employeePageQueryDTO.getName()!=" "){
            lam.like(Employee::getName,employeePageQueryDTO.getName());
        }
        lam.orderByDesc(Employee::getCreateTime);
        employeeMapper.selectPage(iPage,lam);
        long total = iPage.getTotal();
        List<Employee> employeeList=iPage.getRecords();
        PageResult pageResult=new PageResult(total,employeeList);
        return pageResult;
    }

    @Override
    public void startOrstop(Integer status, Long id) {
        LambdaQueryWrapper<Employee> lam=new LambdaQueryWrapper<>();
        Employee employee=new Employee();
        employee.setStatus(status);
        employee.setId(id);
        employeeMapper.updateById(employee);
    }

    @Override
    public Employee selectById(Long id) {
        Employee employee=employeeMapper.selectById(id);
        employee.setPassword("******");
        return employee;
    }

    @Override
    public void updateEmp(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        /*公共字段*/
        employee.setUpdateUser(BaseContext.getCurrentId());
        employee.setUpdateTime(LocalDateTime.now());
        employeeMapper.updateById(employee);
    }


}
